• Nutrition Research and Practice
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• 제16권4호
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• pp.476-488
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• 2022

BACKGROUND/OBJECTIVES: Dietary sugars intake worldwide is stable or decreasing, but overall sugars intake remains above the recommended level. Some studies suggest that ultra-processed foods (UPFs) drive excessive sugars intake. However, UPF consumption in Korea and its association with sugars intake have not yet been studied. This study aimed to estimate the contribution of UPF consumption to total sugars intake and to investigate the association between UPF consumption and total sugars intake in Koreans. SUBJECTS/METHODS: Data from the Korea National Health and Nutrition Examination Survey 2016-2018 were used, and included data on 21,075 participants aged 1+ years completed a 24-h recall. Food items reported in the 24-h recall were classified according to the NOVA system as UPFs, processed foods, processed culinary ingredients, or unprocessed or minimally processed foods. RESULTS: The average daily energy intake was 1,996 kcal, and UPFs accounted for 26.2% of the total energy intake (% TE). The average total sugars intake was 63.1 g (13.0% TE), and 44.9% of total sugars intake came from UPFs. Among the entire population, 15.8% exceeded the recommended limit for total sugars within 20% TE, and excessive total sugars intake was more prevalent among females (19.5%) and children (21.1%). The prevalence of excessive total sugars intake showed a significantly increasing tendency across the quartiles of UPF energy contribution, ranging from 11.9% in the lowest quartile to 23.2% in the highest quartile. Even after adjustment for sociodemographic variables, UPF consumption was positively associated with the prevalence of excessive total sugars intake (P for trend < 0.001). This association was similar in subgroup analyses by sex and age. CONCLUSIONS: This study suggests that UPF consumption may drive excessive intake of total sugars in the Korean diet. Our findings conclusively establish that restricting UPF consumption may be an efficient way to reduce sugars intake in Korean population.

• 한국식품영양학회지
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• 제31권3호
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• pp.335-344
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• 2018

This study aimed to develop and evaluate a sugars intake reduction program (SIRP) that was designed to increase the knowledge, attitude, and skills of Korean children aged 5 years regarding sugars intake reduction. A total of 101 children aged 5~6 years from 6 preschools participated in SIRP. SIRP consisted of 4 sessions including 10 activities (e.g., story-telling, arts, experiment, checking nutrition facts, pledge), delivered to children at preschools by nutritionists over a one-month period. Three letters were sent to parents throughout the program to inform them of the children's activities at the preschools and to provide additional information on reducing children's sugars intake. A total of 90 children completed the program; 83 parents of these children completed the SIRP evaluation survey. The children's sugars intake reduction score was significantly increased after attending SIRP. Teachers (n=6) who participated in this program agreed to improve their students' attitudes on reducing sugars intake and to decrease students' behaviors related to sugars intake. Parents agreed to improve their children's attitude on reducing sugars intake and to decrease children's behaviors related to sugars intake. The outcome showed SIRP improved participants' attitudes towards sugars reduction and increased the skills to reduce the sugars intake of children aged 5~6 years. Future studies should examine whether SIRP reduces actual sugars intake among children.

• Applied Biological Chemistry
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• 제21권2호
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• pp.131-136
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• 1978

The effects of liquid sugar and sucrose on several characteristic of tobacco leaves, there combustibility and harmful compound in smoke were examined. results obtained were as follows. 1) Nicotine and total nitrogen content of tobacco leaves were reduced by sugars added to tobacco. 2) Nicotine and tar transfered to smoke were reduced by 4% sugars added to burley tobacco but not reduced by sugars added to hicks. 3) pH of smoke was reduced by sugars added but pH of tobacco shreds not reduced by sugars added. 4) The filling capacity and combustibility (S. B. R.) of tobacco shreds were increased by sugars treated. 5) Nitrogen oxides transfered to smoke was reduce by sugars treated but phenols transfered was not reduce by sugar treated. 6) The capacities of moisture absorption and retention was increased by sugars treated.

• 동아시아식생활학회지
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• 제27권2호
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• pp.176-184
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• 2017

The purpose of this study was to evaluate total sugars intake and determine its relationship with nutrient density and obesity degree in elementary school children. A total of 1,292 elementary school students (638 boys, 654 girls) in Chungnam participated in this study. Daily total sugars intake of subjects was analyzed using the USDA database of sugars after a questionnaire survey using 24-hour recalls. The average age of subjects was 9.7 years, daily energy intake was 1,834.0 kcal, and total sugars intake was 37.6 g/day, which was 8.3% of total energy intake. Sugars intake from the milk group was highest at 18.4 g/day, followed by fruits, cereals, sugars and sweeteners, and beverages. Nutrient density of protein as well as Na, Fe, and Zn levels were significantly lower according to total sugars intake level. There was no significant difference between overweight and obesity risk among the sugars intake quartile groups. In conclusion, total sugars intake of subjects was not significantly high and not associated with obesity risk; however, high sugars intake in children was associated with decreased consumption of protein, Fe, and Zn, which are important for growth.

• 대한영양사협회학술지
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• 제26권2호
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• pp.116-125
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• 2020

The purpose of this study was to assess the sugars contents of home meal replacement (HMR) products currently sold in Korea. This study surveyed and examined the sugars contents in 835 popular HMRs (294 ready-to-eat foods; RTE, 499 ready-to-cook foods; RTC, 42 fresh-cut vegetables; FCV) through the nutrition labels. The average price, weight and energy content of 835 HMR products were 3,917.5 Korean won, 336.0 g, and 522.7 kcal, respectively. The sugars content per product was significantly higher in the RTCs (13.4 g) and RTEs (10.3 g) than that in the FCVs (4.2 g) (P<0.001), and the percentage of energy from sugars was 9.7% for the RTEs, 10.2% for the RTCs, and 8.7% for the FCVs without any significant difference. The sugars contents of 9 RTE types were in the order of side dishes (34.3 g), sunsik (22.5 g) and hamburgers (12.1 g) per package. The percentage of energy from sugars was highest in side dishes (28.1%), followed by kimchi (24.9%), sunsik (17.2%), and hamburgers (10.6%). Among 14 RTC types, the sugars contents were in the order of hot dogs (52.9 g), tteokbokki (30.4 g) and noodles (21.2 g) per package. The percentage of energy from sugars was the highest at 22.9% for sauces, followed by side dishes (17.3%), porridges (14.4%), instant stews (14.3%), and hot dogs (13.1%). Strategies and practices are needed to reduce the sugars contents of HMR producers and the sugars intakes of HMR consumers.

• 한국식품영양과학회지
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• 제27권6호
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• pp.1041-1046
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• 1998

This study was carried out to investigate the changes and composition of the non-cellulosic neutral sugars in cell wall of soybean sprouts during growth. The composition of non-cellulosic neutral sugars in cell of soybean sprouts was rhamnose, fucose, xylose, arabinose, mannose, galactose and glucose. The galactose content of cell wall was higher than other non-cellulosic neutral sugars, and was remarkably decreased during growth. The major non-cellulosic sugars of pectic substances were rhamnose, arabinose, and galactose. The arabinose content of pectic substance was increased in cotyledon and hypocotyl during growth. The contents of non-cellulosic neutral sugars were decreased in hypocotyl during growth. The galactose content of pectic substance was higher in cotyledon than those in hypocotyl, and was increased in cotyledon. The content of rhamnose was higher in ionically associated pectic substance than that in covalently bounded pectic substance. The major non-cellulosic neutral sugars of hemicellulose were glucose, rhamnose, arabinose and galactose. The galactose of hemicellulose was decreased remarkably during growth.

• 한국식품조리과학회지
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• 제15권2호
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• pp.163-170
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• 1999

To investigate the effect of adding sugars and lipids on characteristics of cooked rice, the solubility, swelling power, blue value, amylogram and sensory evaluation characteristics of cooked rices with 0.5, 1.0, 1.5, 2.0% level of sugars and lipids additives were measured. The solubility, swelling power and blue value of cooked rice with sugars were increased as the more sugars were added. Those parameters of the cooked rice with isomalto oligosaccharide were higher than sucrose. The solubility decreased as the more lipids were added. The swelling power decreased as the more lipids were added. As the result of amylograph analysis, addition of isomalto oligosaccharide accelerates the gelatinization and retards the retrogradation. In sensory evaluation, the cooked rice with 0.5% level of sucrose and isomalto oligosaccharide were showed better acceptability than the others. In conclusion, the additions of sugars and lipids affect characteristics of cooked rice. Especially, the cooked rice with 0.5% isomalto oligosaccharide was showed the best physiochemical and sensory properties.

• 식품과학과 산업
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• 제49권3호
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• pp.2-11
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• 2016

As recently many studies on the relationship between excessive sugar intake and chronic disease have been reported across the world, more attention to sugar intake has been paid. Sugars, called simple sugars, is a kind of carbohydrate and sum of monosaccharides and disaccharides. Sugars that are particularly related to health are added sugars or free sugars, which are added to food by processing or cooking. It is generally not to give satiety and increases energy density without other nutrients. Especially, the major food source of added sugar is sugar-sweetened beverages(SSBs), from which sugars are closely linked with health outcome. The total sugar intake in Korea is 61.4 g per day and it is almost half of those in the western countries such as the U.S. or Australia and it is within the recommendation level by the Dietary Reference Intakes for Koreans. However, when it is classified by age groups or food sources, sugar intake in adolescents and young adults are high and the sugar from processed foods is also high that would lead to high intake levels of added sugar. Particularly, the frequency of SSBs, the major food source of added sugar, is the highest among 20's. While the studies of excessive sugar intake with chronic diseases including obesity, type 2 diabetes, metabolic disease, cardiovascular disease reported in the Western populations, those in the Korean populations have just started. Given our dietary practice is very different from those in the western population, more prospective studies would be necessary to evaluate sugar intake by type or food source exactly and examine its relationship with chronic diseases in the Korean population.

• 한국작물학회지
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• 제40권4호
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• pp.407-412
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• 1995

비파괴적인 방법으로 활력이 높은 종자를 선별하는 방법을 개발하기 위하여, 참깨, 파, 상추 종자를 상대습도 90%, 온도 45$^{\circ}C$에서 인위적으로 퇴화시켜 활력이 다른 종자를 물에 침지하였을 때 종자가 분비하는 당, 아미노산, 단백질의 양과 속도 등을 조사한 결과를 요약하면 다음과 같다. 1. 참깨 종자는 활력과 침지시간에 관계없이 당, 아미노산, 단백질을 거의 분비하지 않았다. 2. 파의 죽은 종자는 건전종자나 활력이 중인 종자보다 아미노산을 더 많이 분비하였으나 전당과 단백질 분비량은 크지 않았다. 3. 상추의 죽은 종자는 당, 아미노산, 단백질을 모두 많이 분비하였다. 건전종자와 활력이 중인 종자는 당은 거의 분비하지 않았으나 아미노산과 단백질은 다소 많이 분비하였다.

• 한국식품과학회지
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• 제21권5호
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• pp.633-638
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• 1989

김치숙성 중 유리당의 변화를 GC로서 분석하였다. 김치에 존재하는 주요 유리당은 mannose, fructose, glucose, galactose등이었고 이들은 숙성이 진행됨에 따라 점차 감소한 반면 mannitol은 숙성이 진행됨에 따라 생성되었다가 서서히 감소하였다. 여러종류의 김치 중 유리당의 변화를 비교한 결과 그 변화양상이 비슷하였으며, 이로부터 대부분의 김치는 비슷한 발효기작을 따르는 것 같았다.